Problem with tool manipulators

I don't have any manipulators on my Scale, Rotate, And move tools, sometimes they are there, but the coloured arrows are too small to use. Any suggestions?

  • and - keys change their scale!

Thanks man, i feel like such a newbie.

naaah, dont be too embarassed i wondered abou that in my time...

Acxtualy if you msut know i looked at the prefs found something that did change the scae then it occured to me there must be a shortcut for this, chekked the editor,,,